butler



(No Model.) 2 Sheets-Sheet 1.

E. BUTLER.

v HYDROGARBON MOTOR. No. 423,214. Patented Mar. 11, 1890 (N0 Model.) 2 Sheets-Sheet 2.

E. BUTLER. HYDROGARBON MOTOR.

atented Mar. 11, 1890 fiweniar UNITED STATES PATENT OFFICE;- I r EDWARDHUTLER, or LONDON, ENGLAND, AssIdNoR TO THE BUTLERS lA'iEN'l PETROL-CYCLE SYNDICATE, (LIMITED,) or SAME PLACE.

HYDROCARBON-MOTOR.

SPECIFICATION forming partof Letters Patent No. 423,214, dated March 11, 1890.

Application died June 8,1889. Serial He. 318,539. (No model.) Patented in England November 15, 1887,1io. 16,598.' I

1'0 all whom it may concern:

Be it known that-I; EDWARD BUTLER, en-

gineer, asubjeet of the Queen of Great Brit ain and Ireland, residing at Old Broad Street, in the city of London, England, have invented Improvements in Carbureting Devices or Inspirators for I lydrocarbon-lilotors,

(for which I have-obtained Letters Patent in Great Britain, November 15, 1887, No. 15,598,)

of which the following is a specification.

This invention relates to improvements in carburetingdevices or.inspirators for producing an intimate mixture of air and petroleum-spray for use in petroleum-motors.

In a carbureting device orinspirator (hereinafter called an inspirator) accordingto this invention the quantity of petroleum sprayed into the air on its way to the motor-cylinder is varied ac ording to the quantity of air drawn through the iuspirator at each suctionstroke of the motor-piston, so that the degree of carburation of the air sosupplied to the motor shall remain practically constant.

In the accompanying two sheets of drawings, Figure 1 1s a central longitudinal section of an inspirator constructed according to this invention withpart of an attached reservoir. Fig. 2 is a similar view to Fig. I, iilustratinga modified form of iuspirator.

The inspirator shown in' Fig. 1 comprises two colloidal-shaped casings 1 and 2, secured together at their smaller ends, as shown. The larger end of thecasing 1 is in communication with the atmosphere, and the larger end of the casing '2 is adapted to be connected by a pipe 3 with the working-cylinder of the motor with which the inspiratoris to be used.

- The smaller end of the casing 1 projects into the smaller end ofthe casing 2, and is so ar-' ranged with reference thereto as to leave an l'strokc of the motdrfpistom Within the casing,and extending centrally through the nozzle 7, so as to form an annular airway, is a eonoidal-shapcd plug 8, provided with stems 9 10, that can slide 1 ngitndinally in bearings formed in a cone dai- 55 shaped casing 11 and a nut 12, respectively.

13 is a'spring that bears at one and against the nut 12 and at the other end a'gainstan adjustable nut 14 on the stem 9, and normally" keeps a shoulder 15 on the plug inner end of the extension 16 of t e nut 12. The right-hand end of the plug'may advantageously be stepped, as at 17, in order that the air and petroleum-spray flowing be-- tween it and the'casing 2 may be intimately mixed. For the same reason the plug may advantageously be made hollow and the easing 11 be arranged to project therein, as shown.

The flow of petroleum through the annu- 7o lar opening 4, due to the inducing action or air flowing through the nozzle 7, maybe regulated by means of an adjustable conicaiiyformed valve 1 8, that is provided with a handwheel 18'.

18 is apointerorindex-finger forindiceting, in connection witha scale on the hand-wheel, the position of The valve 18. I This valve may be provided with ahole 19, as shown, for the passage of air which can enter'through holes 20 and mix with the petroleum as it passes the end of the valve 18 and causes it to flow into and around the annular space 4 in the form of spray. The petroleum or petroleumspray is drawn b the current of air flowing through the nozz e 7 into the enlarged spacev within the casing 2, where there subsists a partial vacuum, and in which the air becomceiutimateiy incorporated with the petroleum or partially-vaporized petroleum-spray. 9o

'21 is a screw-plug -fo r controliing the flow of air through the holes 20.

The petroleum is maintained at a constant height in the reservoir 6* by any suitable means, such as avalve controlled bya float 22. 9 5

By mounting the plug in the manner described the greater the" exhausting action of the motor the more it will move to the right .k against the action of the spring13--and on large the annular opening 7 to allow of the zoo ainst the 60 passage of a greater quantity of air there-. through, and vice versa. The quantity of petroleum induced to flow through the annular passage 4 will also vary with the quan- 5 tity of air passing through the nozzle or annular opening 7, so that the carburatiou of such air will remain practically. constant. The air thus carbureted is drawn oif through the pipe 3 tothe motor-cylinder.

The extent of movement of the plug 8 by theaction of the infiowing air may be regulated by adjusting the action of the spring by the nut 14. a

The inspirator illustrated in Fig. 2 com- ;5 prises a. casing 23,,throu'gh which. air isdrawn in the direction of the arrows by the induc ing action of the piston of the motor. In this casing is-fitted to slide verticallya cylindrical plug or piston-valve 8, that is formed with re a series of openings 8, that can be brought below or raised above the lower edge 24 of the inner cylindrical portion of the casing by the downward or by the upward movement (as the case maybe) of the piston-valve. The :5 space above the piston-valve is in constant and free communication with the atmosphere by the branch 1, and the space below the valve communicates by the branch 2 with a' motor-cylinder. V 3 0 The pressure of the air upon the top of the lrisl omvalve when a partial vacuum is formed bclowthe same by the suction or down stroke of themotor-piston tends to force down the piston-valve. This downward tendencyof the piston-valve is opposed by the upward pressure of the adjustable spring 13,'as in Fig. 1. The casing 23 is provided with a tubulal extension 25, which dips into'a petroleum-reservoir 6? and is furnished with an inlet-valve 4o 26. In this tubular extension works a tubu- Iar plunger 27, that projects from the under side of the piston-valve. This tubular plun- 'ger is open at both ends, and in its lower end is provided a seat for a valve 28, that opens upward and is rigidly connected bya stem 29 with another valve 30, that also opens upward and is capable of closing upon a' seat at 31. When the piston-valve and tubular plunger move upward, the inlet-valve 26 will open and 5e admit a quantity of petroleum to the interior of the tubular extension, and when the piston-valve and plunger are caused to move downward the petroleum will be forced to ascend within the plunger and issue at its I upper end in theform'ot' athin annular stream of spray produced by the conical formation hi the upper valve 30. This spray mingles with and carburets the inrushing air, which then passes through the openings 8, which will then be brought below the edge 24 by the i downward movement of the piston-valve. The mingling of the air with the petroleum-spray is promotedby the concave spherical formaticn of the inner surface of the upper part of 6 theypistonyalve.

- 32'is "op to limit the upward movement of the valve30, which is normally pressed I lar to the nut 14, Fig. 1.' Ateach suction-stroke of the motor-piston the piston-valve will be caused to descend to allow air to flowthrough theholes -8. The extent of motion thus imparted to the piston-valve varies with the quantity of air supplied to the motor-cylin: ders. The quantity of petroleum sprayed into the. valve-casing will also at the same time -be correspondingly. increased or diminished according to the said quantity of air drawn in at each stroke of the motor-piston. By this means the degree of carburation of the air supplied to the motor remains practically constant.

What I claim is- 1. A carburetlng device or inspirator adapted to be connected with the cylinder of a hydrocarbon-motor and comprisinga casing having inlets fo air and for petroleum and an outlet for earbureted air, and an air-reg;

lating'device adapted to be operated in anautomatic manner by air drawnthrough ssid casing on the suction-stroke of said motor, the

arrangement being such that when air is drawn through said casin g at each inspiration stroke of the motor petroleum will be caused to enter said casing and mingle with said air,

the proportion of -petroleumso admitted var ing with the proportion of air passing throng the said casing.

2. ,In a car-bursting device or inspirstorlor hydrocarbon-motors, the combination of a casing having a contracted air-p e, a chamber or passage for petroleum, gm 'nl'etpipe arranged to admit petroleum to said chamber or passage, and a plug or spindle Bl". ranged within'and capable of automatically KOO res

adjusting its position within said contracted air-passage, substantially as herein described.

3. In a carbureting device or inspimtor for hydrocarbon motors, the combination of 'a casing having an air-passage theretlirough contracted at one part,' an annularchamberv or passage surrounding said contracted part, and an inlet-pipe arranged to deliver petroleum to said chamber or tially as'herein described.

4. In a carbureting device or inspirator for hydrocarbon-motors, the combination of a casing having a coptractedannular air-passage therthrough', an annular petroleumchamber or passage surrounding said air-pas.

sage for petroleum, an inlet-pipe arranged to admit petroleum to said chamber or passage, and a conical plug or spindle arranged within said contracted air-passage and capable of longitudinal movement, substantially as herein described, for the purpose set forth.

5. In acarburetin'g .device orinspiratorfor hydrocarbon-motors, the combination of I casing having a contracted annular air-paspassage, substam' [is p sage therethrough, an annular chamber or her surrounding thecontracted part of the; passage 4 for petroleum, an inlet-pipe 6, arpassage through said casings, apipe adapted ranged to admit petroleum to said annular to supply petroleum to said annular chamber, chamberorpessage,eudaz eguleting-valve 18, and a spindle arranged within the eir paS .5 capable of controlling the flow of petroleum sage through said casings and adapted tovary 3' through said pipe, substantially as'herein 'de-. the cross-sectional area of said passage, subscribed. 1 stantially as herein described, for thep'urposc 6. In acarbureting device or inspirator for set forth. I hydrocarbon-motors, thecombination of a 9. Acarhureiing device orinspirator-com- KO casing having a contracted air-passage, a prisinga double conical casing 1. 2, an annularvtio chamber or passage for petroleum, an inlet-' passage 4, surrounding the contracted paspipe arranged to admit petroleum to said 'sage through said casing, a pipe 6, for admit chamberor passage, and a. pipe or passage ting-petroleum to said annular passage, s arranged to deliversir'to petroleum passing valve 18, for controlling thepessage of. petrox5 through and before it leaves the said ch'amleum through said pipe to said annular pas 45 or or passage, substantially as herein desage and having an airway therethroughmud scribed, for the purpose specified. an automatically-adjustable plug or spindle, '1'. Acarbureting device or inspirator com 8, arranged longitudinally within said casing, prising two conical or conoidel shaped casings substantially as herein described, for the purzo arrangedwith theirsmaller endsadjacentand poses-set forth.', 5 through which aircan pass, an annular chsm- 'In testimony whereof I have signed my ber surrounding the contracted part of the name to this specification in the presence of passage through said casings, and a pipe two subscribing witnesses J adapted to supply petr 'leuni to said annular 25 chamber, substantially as herein described, EDWARD BUTLER.

for the purpose specific Witnesses: V

8. A carbureting device or inspirator com- WILLIAM CROSS, I prising two conical or conoidal shaped casings EDW. W. QCKENDEN,

arranged with theirsmullereuds adjacent and Both of 46 Lincolns Inn Fields, London, 30 through'which air can. pass, an annular chem- 

